Protection functions can be customized such as lock protection, dry-run protection and so on.

Wide range of working voltage; parameters can be adjustable, e.g. 12VDC pump can have lift of 1m and lift of 3m with the same pump body.

For A/S sub-series,soft-start without impact,can be directly powered by solar panel; circuit parts and motor parts completely separated, no electronic components inside pump body; pump body is made of high-temperature-resistant material, so pump can continuously work at fluid with high temperature (as high as 100C); have several protection functions, such as impeller&rotor lock protection, polarity reverse-connected protection, over-load protection, over-current protection, etc.

Soft start, no current impact, can be contact directly with solar panel

Diagram of 3phase brushless DC pump connection

S-Series A-SeriesPotentiometer Speed adjusting connection:Contact the red and black wire to both ends of potentiometer(variable resistor),then contact the yellow wire to the middle of potentiometer,Speed canbe changed by turning the potentiometer. Potentiometer speed adjusting is the same with VR speed adjusting(Remove the potentiometer and contact the speed adjusting wire like VR speed adjusting connection bellow).PWM(50-800HZ/Amlitude 5V) or VR(0-5V) Speed adjusting connection:
Contact the yellow wire to the control system's speed control signal output interface(PWM or VR) and contact the black wire to the ground lead in the control system.hang the red wire on the air.

Note:
1, lift and flow rate of product can be customized
2, dimension of inlet/outlet, speed adjusting method and control system can be customized.
3,Food grade and mute pump can be customized.
More details refer to official web of : http://www.smalldcpump.com